DUAL TABLE The DUAL table has one row called "X" and one column called "DUMMY." The DUAL table is used to create SELECT statements and execute commands not directly related to a specific database table. Queries using the DUAL table return one row as a result.

Note 20 days added to the hire date

The results in Days

Equal values

2. King, -1 Kochhar, 100 Vargas, 124 Zlotkey, .2 Statement will fail King, -1 Kochhar, 100 Vargas, 124 Zlotkey, .2 King, -1 Kochhar, 100 Vargas, 124 Zlotkey, 100 King, null Kochhar, 100 Vargas, 124 Zlotkey, .2 Answer 2. King, -1 Kochhar, 100 Vargas, 124 Zlotkey, .2

SEE YOU NEXT MEETING Raafat Rashad GOOD LUCK raafat_rashad@yahoo.co.uk raafat_rashad@hotmail.com